In mana_probe(), if mana_probe_port() fails for any port, the error is stored in 'err' and the loop breaks. However, the subsequent unconditional 'err = add_adev(gd, "eth")' overwrites this error. If add_adev() succeeds, mana_probe() returns success despite ports being left in a partially initialized state (ac->ports[i] == NULL). Only call add_adev() when there is no prior error, so the probe correctly fails and triggers mana_remove() cleanup. Fixes: ced82fce77e9 ("net: mana: Probe rdma device in mana driver") Signed-off-by: Erni Sri Satya Vennela --- drivers/net/ethernet/microsoft/mana/mana_en.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c b/drivers/net/ethernet/microsoft/mana/mana_en.c index f6ad46736418..1a141c46ac27 100644 --- a/drivers/net/ethernet/microsoft/mana/mana_en.c +++ b/drivers/net/ethernet/microsoft/mana/mana_en.c @@ -3680,10 +3680,9 @@ int mana_probe(struct gdma_dev *gd, bool resuming) if (!resuming) { for (i = 0; i < ac->num_ports; i++) { err = mana_probe_port(ac, i, &ac->ports[i]); - /* we log the port for which the probe failed and stop - * probes for subsequent ports. - * Note that we keep running ports, for which the probes - * were successful, unless add_adev fails too + /* Log the port for which the probe failed, stop probing + * subsequent ports, and skip add_adev. + * Already-probed ports remain functional. */ if (err) { dev_err(dev, "Probe Failed for port %d\n", i); @@ -3697,10 +3696,9 @@ int mana_probe(struct gdma_dev *gd, bool resuming) enable_work(&apc->queue_reset_work); err = mana_attach(ac->ports[i]); rtnl_unlock(); - /* we log the port for which the attach failed and stop - * attach for subsequent ports - * Note that we keep running ports, for which the attach - * were successful, unless add_adev fails too + /* Log the port for which the attach failed, stop + * attaching subsequent ports, and skip add_adev. + * Already-attached ports remain functional. */ if (err) { dev_err(dev, "Attach Failed for port %d\n", i); @@ -3709,7 +3707,8 @@ int mana_probe(struct gdma_dev *gd, bool resuming) } } - err = add_adev(gd, "eth"); + if (!err) + err = add_adev(gd, "eth"); schedule_delayed_work(&ac->gf_stats_work, MANA_GF_STATS_PERIOD); -- 2.34.1